CN211835552U - Negative pressure drainage bottle - Google Patents
Negative pressure drainage bottle Download PDFInfo
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- CN211835552U CN211835552U CN202020169018.5U CN202020169018U CN211835552U CN 211835552 U CN211835552 U CN 211835552U CN 202020169018 U CN202020169018 U CN 202020169018U CN 211835552 U CN211835552 U CN 211835552U
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- piston
- bottle body
- negative pressure
- air
- cavity
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- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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Abstract
The utility model discloses a negative pressure drainage bottle relates to drainage articles for use field, provides one kind and can reduce the undulant negative pressure drainage bottle of negative pressure among the drainage process. The negative pressure drainage bottle comprises a bottle body, and a liquid cavity is arranged in the bottle body; also comprises an air extracting device; an air exhaust cavity arranged in the up-down direction is arranged in the bottle body, a second air hole communicated with the air exhaust cavity is formed in the bottom of the bottle body, and an air exhaust cavity opening is formed in the top of the bottle body; the air pumping cavity is communicated with the liquid cavity through a first air hole positioned at the top of the bottle body; the air extractor comprises a piston, a sealing cover and a fixing structure; the piston is positioned in the air pumping cavity and matched with the air pumping cavity, and can move downwards by means of the self weight; the fixing structure is connected with the bottle body, and when the piston moves upwards to the top of the bottle body, the fixing structure fixes the piston; the sealing cover can be detachably connected with the bottle body, and when the sealing cover is connected with the bottle body, the sealing cover seals the air exhaust cavity opening and pushes the piston downwards to enable the piston to leave the fixing structure.
Description
Technical Field
The utility model relates to a drainage articles for use field especially relates to a negative pressure drainage bottle.
Background
The mode that negative pressure drainage bottle produced the negative pressure mainly relies on drainage bottle self elasticity, relies on the spring and relies on other equipment to take out the negative pressure.
Chinese patent ZL201420476013.1 discloses a negative pressure drainage bottle, which relies on its own elasticity to generate negative pressure. The bottle body has certain hardness and elasticity, and can be rebounded to the original shape. When the bottle is used, the bottle body is squeezed, air in the bottle body is discharged, and the bottle body rebounds to generate negative pressure in the bottle body.
Chinese patent ZL 201920584540.7 discloses a negative pressure drainage bottle that relies on a spring to generate negative pressure. When in use, the bottom plate of the bottle body is pushed to compress the flexible part of the bottle body and exhaust air; at the same time, the connecting rod is moved inwards to compress the spring. After the hand is loosened, the elastic force of the spring pushes the connecting rod outwards, the connecting rod enables the bottom plate of the bottle body to move, the flexible part of the bottle body is stretched, and therefore negative pressure is generated in the bottle body.
Although above-mentioned two kinds of negative pressure drainage bottles can produce the negative pressure, no matter rely on bottle itself or the spring produces the negative pressure and all be initial negative pressure great, along with bottle or spring kick-back and suction liquid in the drainage bottle, the negative pressure is littleer and smaller, is difficult to guarantee that the negative pressure is invariable, probably causes the injury to the human body when the negative pressure is big, and drainage effect is influenced again when the negative pressure is big.
Chinese patent ZL 201820468011.6 discloses a negative pressure assisted closed thoracic drainage device which relies on other devices to draw negative pressure. Particularly, air in the drainage bottle is pumped out by a central negative pressure system of a hospital, so that negative pressure is generated. The drainage device also has the advantage that the negative pressure is reduced along with the suction of liquid in the drainage bottle; and is difficult to apply without auxiliary equipment due to the need for other equipment assistance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: provides a negative pressure drainage bottle capable of reducing negative pressure fluctuation in the drainage process.
The technical scheme adopted for solving the problems is as follows: the negative pressure drainage bottle comprises a bottle body, and a liquid cavity is arranged in the bottle body; also comprises an air extracting device; an air exhaust cavity arranged in the up-down direction is arranged in the bottle body, a second air hole communicated with the air exhaust cavity is formed in the bottom of the bottle body, and an air exhaust cavity opening is formed in the top of the bottle body; the air pumping cavity is communicated with the liquid cavity through a first air hole positioned at the top of the bottle body; the air extractor comprises a piston, a sealing cover and a fixing structure; the piston is positioned in the air pumping cavity and matched with the air pumping cavity, and can move downwards by means of the self weight; the fixing structure is connected with the bottle body, and when the piston moves upwards to the top of the bottle body, the fixing structure fixes the piston; the sealing cover can be detachably connected with the bottle body, and when the sealing cover is connected with the bottle body, the sealing cover seals the air exhaust cavity opening and pushes the piston downwards to enable the piston to leave the fixing structure.
Further, the method comprises the following steps: the air extractor comprises a connecting rope, and the connecting rope is connected with the piston and the sealing cover.
Further, the method comprises the following steps: the fixing structure is an elastic sleeve, a fixing flange is arranged on the piston, and the fixing structure can tightly extrude the fixing flange by means of elasticity of the fixing structure.
Further, the method comprises the following steps: the negative pressure drainage bottle comprises a valve, and the valve is arranged corresponding to the first air hole.
Further, the method comprises the following steps: the valve is a one-way valve, and the valve enables gas to flow from the liquid cavity to the air suction cavity in a one-way mode.
The utility model has the advantages that: 1. as shown in fig. 1 and 3, in the initial drainage state, the piston is located at the top of the suction cavity, but is not connected to the fixed structure. Because the piston can move downwards by means of the self weight, the piston moves downwards to extract partial air in the liquid cavity, negative pressure is generated in the liquid cavity, the negative pressure and the gravity act on the piston together to keep the piston balanced, and the negative pressure can suck liquid needing to be drained in a human body. As the drainage liquid enters the liquid cavity, the negative pressure in the liquid cavity is reduced, and the piston continues to move downwards to recover the negative pressure in the liquid cavity. It is visible the utility model discloses do not rely on other equipment can produce the negative pressure to drainage in-process negative pressure keeps invariable basically, has both avoided the negative pressure too big to cause the injury to the human body, avoids the negative pressure undersize to influence drainage effect again.
2. When the piston moves to the bottom of the air suction cavity, the sealing cover is opened, the piston moves upwards again, the sealing cover is covered again, the negative pressure drainage bottle returns to the initial state, negative pressure can be continuously generated in the liquid cavity, and therefore negative pressure drainage is continuously achieved. It is thus clear that the utility model discloses can make the liquid chamber keep the negative pressure for a long time, make the liquid chamber can inhale full liquid, also make negative pressure drainage bottle repeatedly usable.
Drawings
FIG. 1 is a negative pressure drainage bottle feature;
FIG. 2 is a top view of the negative pressure drainage bottle (with the sealing cap removed);
FIG. 3 is an enlarged view of a portion of the negative pressure drainage bottle;
FIG. 4 is a partial enlarged view of the negative pressure drainage bottle in the state that the piston is lifted upwards;
labeled as: the bottle body 1, the liquid cavity 11, the pumping cavity 12, the first air hole 13, the second air hole 14, the drainage tube connector 15, the pumping cavity opening 16, the valve 2, the pumping device 3, the piston 31, the fixing flange 311, the sealing cover 32, the lower pressing sleeve 321, the fixing structure 33, the ventilation opening 331 and the connecting rope 34.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1 to 3, the negative pressure drainage bottle comprises a bottle body 1, wherein a liquid cavity 11 is arranged in the bottle body 1; also comprises an air extracting device 3; the bottle body 1 is internally provided with an air pumping cavity 12 which is arranged in the up-down direction, the bottom of the bottle body 1 is provided with a second air hole 14 which is communicated with the air pumping cavity 12, and the top of the bottle body 1 is provided with an air pumping cavity opening 16; the pumping cavity 12 is communicated with the liquid cavity 11 through a first air hole 13 positioned at the top of the bottle body 1; the air extractor 3 comprises a piston 31, a sealing cover 32 and a fixing structure 33; the piston 31 is positioned in the air extracting cavity 12 and matched with the air extracting cavity 12, and the piston 31 can move downwards by means of the self weight; the fixing structure 33 is connected with the bottle body 1, and when the piston 31 moves up to the top of the bottle body 1, the fixing structure 33 fixes the piston 31; the sealing cap 32 can be detachably connected with the flask 1, and when the sealing cap 32 is connected with the flask 1, the sealing cap closes the suction cavity opening 16 and pushes down the piston 31 to enable the piston 31 to be separated from the fixed structure 33.
In the initial condition of drainage, the piston 31 is positioned at the top of the suction cavity 12, but is not connected to the fixed structure 33. Because the piston 3 can move downwards by means of the self weight, the piston 31 moves downwards to enable air in the liquid cavity 11 to enter the air suction cavity 12 through the first air hole 13, negative pressure is generated in the liquid cavity 11, the negative pressure and the gravity act on the piston 31 together to keep the piston 31 balanced, and the negative pressure can suck liquid needing to be drained in a human body. As the drainage liquid enters the liquid chamber 11, the negative pressure in the liquid chamber 11 decreases, and the piston 31 moves down continuously to restore the negative pressure in the liquid chamber 11. The second gas hole 14 allows gas to enter and exit the pumping chamber 12 below the piston 31, thereby preventing the gas pressure from affecting the movement of the piston 31.
When the piston 31 moves to the bottom of the pumping chamber 12, as shown in fig. 4, the sealing cover 32 is opened, so that the piston 31 moves up to the fixing structure 33, and the fixing structure 33 fixes the piston 31, thereby preventing the piston 31 from moving down to the bottom of the pumping chamber 12 when the sealing cover 32 is subsequently operated. And then the sealing cover 32 is covered, after the sealing cover 32 is covered, the sealing cover 32 pushes the piston 31 downwards to enable the piston 31 to leave the fixed structure 33, the piston 31 is released from fixation, and the negative pressure drainage bottle returns to the initial state and can continuously generate negative pressure in the liquid cavity 11, thereby continuously realizing negative pressure drainage.
The piston 31 and the fixing structure 33 of the present invention can be loaded from the air-extracting cavity 16.
The piston 31 may be moved upward in various ways, for example, by a thin rod extending from the second air hole 14 to the upper part, or by a hook provided on the top of the piston 31 to hook up the piston 31. The utility model discloses preferred mode as follows: the suction device 3 comprises a connecting rope 34, and the connecting rope 34 connects the piston 31 and the sealing cover 32. After the sealing cover 32 is removed, the sealing cover 32 is lifted upwards, and the connecting rope 34 drives the piston 31 to move upwards. The length of the connecting string 34 should be sufficient to avoid interfering with downward movement of the piston 31.
The fixing structure 33 and the manner of fixing the piston 31 may be various, and the present invention is preferably as follows: the fixing structure 33 is an elastic sleeve, a fixing flange 311 is arranged on the piston 31, and the fixing structure 33 can tightly press the fixing flange 311 by means of the elasticity of the fixing structure. The fixing structure 33 is preferably provided with a ventilation port 331 to prevent the piston 31 from moving upward due to air pressure.
The sealing cover 32 is preferably arranged to push the piston 31 downwards in such a way that the sealing cover 32 is provided with a lower pressing sleeve 321, the lower pressing sleeve 321 pushes the piston 31 downwards during the installation of the sealing cover 32, and the lower pressing sleeve 321 pushes the piston 31 away from the fixed structure 33 when the sealing cover 32 is installed. The sealing cap 32 is preferably connected to the bottle body 1 by a screw thread, and the screw thread may be a fine thread to ensure the sealing effect.
When the sealing cover 32 is opened, gas can enter the liquid cavity 11 through the first air hole 13, so that the negative pressure of the liquid cavity 11 disappears, which can be preferably avoided, and the negative pressure drainage bottle comprises a valve 2, and the valve 2 is arranged corresponding to the first air hole 13. The valve 2 may be a manual valve that is manually closed when the sealing cap 32 is opened, and opened after the sealing cap 32 is installed. The valve 2 is preferably a one-way valve, so that gas can only flow from the liquid chamber 11 to the pumping chamber 12 in one direction.
Besides the above structure, the utility model can also comprise some conventional structures of the prior drainage bottle, for example, the bottle body 1 is provided with a drainage tube connector 15 for connecting a drainage tube; the bottle body 1 can be provided with scales and scale values corresponding to the volume of the liquid cavity 11; the bottle body 1 can be provided with a liquid discharging port, when the liquid cavity 11 is filled with liquid, the liquid can be discharged, and therefore the negative pressure drainage bottle can be reused.
Claims (5)
1. The negative pressure drainage bottle comprises a bottle body (1), wherein a liquid cavity (11) is arranged in the bottle body (1); the method is characterized in that: comprises an air extracting device (3); the bottle body (1) is internally provided with an air pumping cavity (12) which is arranged up and down, the bottom of the bottle body (1) is provided with a second air hole (14) which is communicated with the air pumping cavity (12), and the top of the bottle body (1) is provided with an air pumping cavity opening (16); the air pumping cavity (12) is communicated with the liquid cavity (11) through a first air hole (13) positioned at the top of the bottle body (1); the air extracting device (3) comprises a piston (31), a sealing cover (32) and a fixing structure (33); the piston (31) is positioned in the air pumping cavity (12) and is matched with the air pumping cavity (12), and the piston (31) can move downwards by means of the self weight; the fixing structure (33) is connected with the bottle body (1), and when the piston (31) moves upwards to the top of the bottle body (1), the fixing structure (33) fixes the piston (31); the sealing cover (32) can be detachably connected with the bottle body (1), and when the sealing cover (32) is connected with the bottle body (1), the air suction cavity opening (16) is closed and the piston (31) is pushed downwards to enable the piston (31) to be separated from the fixed structure (33).
2. The negative pressure drainage bottle of claim 1, wherein: the air extractor (3) comprises a connecting rope (34), and the connecting rope (34) is connected with the piston (31) and the sealing cover (32).
3. The negative pressure drainage bottle of claim 2, wherein: the fixing structure (33) is an elastic sleeve, a fixing flange (311) is arranged on the piston (31), and the fixing structure (33) can tightly squeeze the fixing flange (311) by means of the elasticity of the fixing structure.
4. The negative pressure drainage bottle of claim 3, wherein: comprises a valve (2), wherein the valve (2) is arranged corresponding to a first air hole (13).
5. The negative pressure drainage bottle of claim 4, wherein: the valve (2) is a one-way valve, and the valve (2) enables gas to flow from the liquid cavity (11) to the air pumping cavity (12) in a one-way mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169018.5U CN211835552U (en) | 2020-02-14 | 2020-02-14 | Negative pressure drainage bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169018.5U CN211835552U (en) | 2020-02-14 | 2020-02-14 | Negative pressure drainage bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211835552U true CN211835552U (en) | 2020-11-03 |
Family
ID=73249253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020169018.5U Active CN211835552U (en) | 2020-02-14 | 2020-02-14 | Negative pressure drainage bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211835552U (en) |
-
2020
- 2020-02-14 CN CN202020169018.5U patent/CN211835552U/en active Active
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